Stop mechanism for talking-machines



l.. Y. SQUIBB. STOP MECHANISM FOR TALKING MACHINES. APPLICATION FILEDnc.13,1a12. RENEwEn SEPT. x7. ma. 1,303,125.

Patented May 6, 1919:

2 SHEETS-SHEET l.

L. .Y. SQUIBB. STOP MECHANISM FOR TALKING MACHINES. APPLlcAxoN FILEDDEc.13.1912. AmsNEwEDsEPTgH.191e.

, Patented May 6, 1919.

2 SHEETS-SHEET 2.

W/TNESSES ATTORNEY yso rrED slinrns PATENT oFFIcE.

LLOYD Y. SQUIBB, 0F CAMDEN, NEW JERSEY, ASSIGNOR TO VICTOR TAALKIINGMACHINE COMPANY, A CORPORATION OF NEW JERSEY. l

STOP MECHANTSVM FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented May 6, 1919.

Application led December 13, 1912-, Serial No. 736,478. RenewedSeptember 17, 1918. Serial No. 254,511.

To all whom t may concern:

Be it known that ll, LLOYD Y. SQUIBB, a citizen of the United States,and a resident of Camden, county of Camden, State of New Jersey, haveinvented certain new and useful Improvements in Stop Mechanism for'llalking-Machines', of which the following is a specification.

The main objects of this invention are to provide in combination with atalking machine, an improved automatic brake; to provide an improvedautomatic brake mechanism; to provide an improved sound record adaptedto actuate, through the medium of sound. reproducing means, an automaticbrake; and to provide other improvements as vwill appear hereinafter.

In the accompanying drawings, Figure 1 is a fragmentary top plan view ofa talking machine provided with an automatic brake constructed inaccordance with this invention,-

the brake being shown in an operative position; Fig. 2 a fragmentary topplan view of the same, showing the brake in inoperative position; iFig.3 a sectional elevation on line 3-3 of Fig. 1; and Fig. 4 an enlargementof a portion of Fig. 2.

Referring to the drawings, one embodiment of this invention comprises atalking machine including thek usual or any suitable cabinet 1 uponwhich is mounted a horizontal rotary disk record support 2 carried by avertical spindle 3, which is rotated by the usual mechanism (not shown),arranged within the cabinet. Arranged above the record support 2 is theusual sound box 10 which is connected to one end of a tubular member 11,the other end of which is pivotally connected to one end of a hollowtone arm 12, which is mounted to swing about a fixed vertical axis, thesound box being thus connected to the tone arm to swing about ahorizontal axis toward and away from the record support 2, and to swingwith the tone .arm about the vertical axis of the tone arm. The tone arm12 may be arranged t'o communicate with the usual or any suitable soundamplifier 15.

For stopping the rotary record support 2, therey is provided anautomatic brake mechanism which is preferably arranged upon the top ofthe cabinet 1 and mainly beneath the record support 2. This brakecomprises a pivot to the plate 20 and the other end of which carries afriction pad or brake shoe Y 24, arranged to engage, when in operation,

against the inner cylindrical surface of a cylindrical flange or rim 25which projects downwardly from the rotary record support 2, coaxial andpreferablypintegral or rigid therewith. The record support rotatesl inthe "direction indicated by the arrow 26 in Fig.

1 and the brake shoe 24 and its pivot 23 are preferably-arranged so thatthe brake shoe engages the rim 25 in advance of the pivot 23. A spiralspring 30, which is connected at one end to the brake lever 22 adjacentthe brake shoe 24 and at its other end to a lug 31 projecting upwardly`from the base plate 20 integral therewith, acts to throw the brake shoeinto engagement with the rim 25.

For holding the brake shoe 24 out of engagement with the rim 25, thebrake lever 22 is provided with a tooth 35 integral therewith andarranged adjacent and preferably in the rear of the pivot 23. This toothis arranged to engage in a recess 36 provided therefor in the free endof a catch plate or lever 37, which'is mounted to oscillate about avertical pivot .38 extending through the other end .of thelever andfixed in the adj acent end of the base plate 20. yWhen the tooth 35 isin engagement in the recess 36, the plate 37 holds the brake lever 22 inan inoperative position as indicated in Fig. 2, and the spring 30 underan initial tension tending to throw the brake lever into operativeposition upon the release 0f the tooth 35 by the oscillation of thecatch plate 37.

For releasing the brake lever 22 manually from engagement with the catchplate 37, and for resetting thebrake lever manually into engagement withthe catch plate 37, there is superimposed-upon the brake lever 22, areleasing and resetting lever 40 which is mounted to oscillate about thefixed pivot 23 of the brake lever, and which projects from the pivot 23loutwardly beneath and free from the record support and then is bentupwardly and outwardly to form aV convenient handle 41, whereby the samemay be actuated. This releasing lever is provided with a' lu 42 integraltherewith and bent downwardly so as to engage against the outer edge ofthe free end of the catchplate 37 f1/as the releasing lever is rotatedclockwise to move the free end of the catch lever 37 out of engagementWith-the tooth 35 to release the brake lever 22. The releasing lever 40is also provided with an extension 43 integral therewith and -projecting,horizontally over the free end ofthe catch lever 37 and terminating ina downwardly projecting lug 44,-

which acts when the releasing lever 40 is rotated anti-clockwise, toengage the inner edge of the catch plate 37 and to press the free end ofthe catch plate 37 toward the brakel lever 22 to bring `the catch platepositively into engagement with the `tooth 35 of the brake lever 22.AThese lugs, 42 and 44, of the releasing and resetting lever 40 alsocoperate with the catch plate 37 to limit the oscillation of thereleasing and resetting lever 40.

record support 2, to limit 'the clockwisev movement of the brake lever22.

For automatically tripping or releasing the brake lever 22, there isprovided'a trip lever 50 which is mounted to oscillate about the fixedpivot 38. as an axis. This trip lever projects outwardly from the pivot38,

and extends freely beneath and projects out? wardly from the rim 25 ofthe record supv port. The outer portion of this trip lever is bifurcatedto form two-fingers 51, 52, preferably arranged in a horizontal plane,and spaced to form a passage 53 adapted te receive the lower end of avertical stud 54 rigidly secured to and projecting downwardly from thetone arm 12. The lower end of the stud 54 is preferably lin the form ofa roller 54 connected to the upper portion of the stud by m'eans of avertical pivot, the roller 54 being adapted to rotate against the inneredges of the fingers v51, 52, to actu- -ate the trip lever 50 inaccordance with the movement of the tone arm 12 and in a man-l nerdetermined by the slot 53. The inner portion of the slot 53 preferablyextends in a direction radial with respect to the pivot 38, and from theouter end ofits radial portion, the slot is preferably, throughout thegreater portion of its remaining portion, inthe form of an arc of acircle having a radius equal to the distance between the longitudinalaxis of the stud 54 and theaxis of oscillation of the tone arm l2, thisarc being preferably arranged tol be substantially coaxial with the axisof rotation of the tone arm 12 when the stud 54 is in engagement in thiscircular portion of the slot 53. The outer ends of the fingers, 51, 52,preferably diverge to form a comparatively wide inwardly taperingentrance to the slot 53, so that the stud 54 may conveniently enter intoengagement between the lingers 51, 52.

A clutch is provided between the trip lever 5() and the catch lever 37whereby, when the trip lever ismoved anti-clockwise, it will moveindependently of the catch lever, but whereby when the movement of thetrip lever is reversed, the motion of the trip lever will be transmittedto move the catch lever 37 in a clockwise direction. This clutchcomprises a segmental extension or clutch member55 integral with thetrip lever 50, and preferably provided with an aperture 55 for .apurpose that will appear hereinafter. This segmental extension 55projects between and is spaced from the base plate 20 and the catchplate 37 and has an outer edge wall comprising two cylindrical orcircular4 portions, an inner portion 56 and an outer cut-away portion56', of different radii respectively and both coaxial with the axis ofthe pivot 38 about which the trip lever oscillates, the inner portionbeing of greater radius than the outer portion, and these two portionsbeing `connected by an inclined shoulder 56". A clutch shoe 57 isarranged to coperatewith the inner portion 56 of the edge of thesegmental extension 55 and is rigidly secured to one end of a clutch arm58 which extends between the catch plate 37 and the segmental extension56, and which is pivoted at its other end to oscillate about a verticalpivot 59 rigid with the catch plate 37, the axis of t-he pivot .59 beingspaced from the axis of the pivot 38 and the clutch shoe 57 being thusmounted to oscillatte eccentric with respect to the segmental extension55.- The lower end of the pivot 5 9 preferably projects below the clutcharm 58, and engages in the aperture 55 in the segmental extension 55 tocoperate as a stop with the bounding walls of the aperture in limitingthe oscillation of the trip lever 50 to `maintain the trip lever alwaysin aconvenient position for operation. A spiral spring 60 or otheryielding means is connetted at oneend to the free'end of the clutch arm58 and at its other end to an extension 6l vintegral or rigid with thecatch lever 37 and normally tends to rotate the clutch arm 58 clockwiseabout the pivot 59 with respect to the catch lever 37 to force theclutch shoe 57 into enga-gement with the circular edge 56 of thesegmental extension 55. The pivot 38 is preferably prvoided at its upperend with a head 62 arranged to engage against the upper surface of thecatch plate 37 and .two washers 63 and 64 are interposed around thepivot between the catch p-late 37 and the `'trip lever 50 and betweenthe trip -lever and the base plate 20 respectively to hold the catchplate and t-he trip lever in spaced relationship.

A fixed stop 65 projects upwardly from the base plate 2O rigid andpreferably integral therewith and is arranged to engage against theclutch shoe 57 when the tooth 35 of the brake lever is not in engagementin its notch 36 of the catch plate 37, to limit the movement of theclutch shoe 57 in a clockwise direction and to relieve the pressurebetween 'the clutch shoe 57 and the circular edge 56 of the segmentalextension 55. When the clutch shoe is in this position, the trip lever50 may be rotated clockwise about its pivot 38 with very slightresistance on the part of the clutch shoe.

When the brake shoe 24 is in an inoperative position with the tooth 35of the brake leverin engagement in its recess 36 of the catch plate 37,and the talking machine is in opera-tion reproducing sound, the clutchshoe 57 is spaced anti-clockwise from the stop 65 and isheld inengagement with the inner portion 5,6 of the edge wall of the segmentalclutch member by` the spring 60. When the clutch shoe 57 is in thisposition, the trip lever may be rotated anti-clockwise about its pivot38 with very slight resistance on the part of the clutch shoe but whenthe movement of the trip lever is reversed, the clutch shoe on accountof its eccentric action, binds firmly against the inner portion 56 ofthe edge wall of the segmental member 55 with the result that a slightmovement of the trip lever clockwise will carry with it the catch plate37 and release the brake le- .ver, thus permitting the brake shoe to bethrown into engagement with the flange 25 of the record support 2 bymeans of the spring .30.

It may also be stated that when for any reason the trip lever 50 ismoved clockwise about its axis 318 from the position shown in F ig. 2,the inner portion 56 of the edge wall of the segmental clutch memberrotates away from and out of contact with the clutch shoe 57 and thecut-away portion 56 of the edge wall moves into a position opposite butout of contact with the clutch shoe, thus relieving the clutch shoe fromunnecessary wear.

For controlling the trip Alever to release the brake .lever 22automatically promptly after the completion of the reproduction of thesounds recorded on the record, means is provided for automaticallyreversing the movement of the trip lever, at the proper moment. In thisinstance, the sound boX or sound reproducing means 10, is mounted tocoperate with a disk sound record carried by the record support 2 and tobe propelled across the record by and in accordance with the record, thesound box 10 being provided in this instance with the usual stylus 71which is larranged to engage in the usual spiral laterally undulatinggroove 72 of uniform depth, the walls of which correspond to soundwaves. The spiralV undulatory groove 72 is as usual, substantiallyconcentric with the record 70, and extends from the outer margin of therecord toward the center thereof, terminating at a point spaced from thecenter of the record. For the purposes of this invention, the soundrecord 70 is provided, in addition to the usual spiral sound groove 72,with a supplementary groove 73 which, in the instance illustrated inFigs. l

and 2, leads from the inner end of the spiral groove 72, and is in theform of a circle arranged eccentric with respect to the record withinthe space inclosed by the spiral groove. The construction is such thatwhen the stylus reaches the inner end of the undulatory spiral groove,it follows into the supplementary groove 73 and a single revolution ofthe record causes la reversal of the movement of the tone arm 12 and areversal or clockwise movement of the trip lever 50 the movement of thetrip lever at the proper moment.y For inst-ance, the spiral undulaltorygroove 72 may terminate in a supplementary groove` which may belongitudinally, either entirely curved or entirely straight, or curvedin'- part and straight in part, and, when curved, may be either in theform of a regular or of an irregular curve, providing that thesupplementary groove leads first from the sound undulatory groove ortoward the center of the record, in a direction to continue the travelof the sound reproducer and afterward leads toward the sound undulatory,groove, or away from the center of the record in a direction to reversethe travel of the sound reproducer.

It is also to be understood that this invention may also be applied totalking machines using cylindrical records or records of any other form,the record in any case being provided either wit-h a supplementarygroovey eration of the brake, it may be stated that.

when it is desired to use the automatic features of the brake, the triplever 5() is adjusted so that the stud 54 of the tone arm 12 engages inthe longitudinally curved portion of the passage 53. The sound box 10 isthen placed in position so that the stylus 7l Will be at or outsideofthe margin of the record 70. The Ibrake shoe 24 is then released fromits normal engagement with the rim 25 of the record support 2 by movingthe handle anti-clockwise. As soon as the record support 2 has reachedits proper speed, the sound box 10 is lowered and the stylus 7l isplaced in engagement with the beginnig of the undulatory groove 72, thevarious parts of the device being then in `the positions shown in Fig, 2with the shoulder 56 of the segmental extension in engagement with theclutch shoe 57. The machine then operates in the usual manner toreproduce the sounds recorded upon the record and until the stylus hasreached the inner end of the spiral undulatory sound groove 72. Duringthe first part of this period, during which the stylus has beentraveling in the spiral groove and reproducing sound, the stud 54 hasordinarily been traveling through the longitudinally curved portion lofthe passage 53 and the trip lever has consequently remained stationary,but during the latter part of this period, the stud 54 has entered andhas beenl traveling in the inner radial portion of the passage 53 andhas been'rotating the trip lever 50 anti-clockwise. During this periodof sound reproduction, the clutch shoe. 57 is held lightly in asubstantially stationary position in contact with the inner cylindricalportion 56 of the outer edge wall of the swinging segmental extension 55by the spiral spring 60. Upon the completion of the reproduction of thesounds recorded upon the record, the stylus continues its movement andfrom the inner end of the spiral groovev into. the circular eccentricgroove 73, Where during a single revolution of the record, the movementof the stylus is l'irst continued toward the center of the record,continuing the anti-clockwise 4movetrip lever 50, and with the resultthat the brake lever 22 is released and the brake shoe is thrown intoengagement with the flange 25 of the record support 2, and the rotationof the record support is thus automatically stopped.

Although only a single form has been shown in Which this invention maybe embodied, it is to be understood that the invention is not limited tothe specific form shown, as it may be applied in various constructionsWithout departing from the spirit of the invention or the scope of theappended claims. I

Having thus fully described my invention, I claim and desire to protectby Letters Patent of the United States:

l. In a talking machine, the combination with a rotary record support,of sound reproducing means arranged to move as a Whole in apredetermined direction across said support to reproduce sound from asound record on said support, a brake mechanism for stopping therotation of said support, means to move said sound reproducing means ina direction opposite .to said redetermined direction,.and means actuateby said reproducing means and operative at substantially the moment whensaid reproducing means start to move in said opposite direction forautomatically operating said brake mechanism.

2.v The combination. with a rotary record support, of .sound reproducingmeans arranged to move across said support in a predetermineddirection.A to reproduce sounds from a sound record on said support,means to move said sound reproducing means in a direction opposite tosaid' predetermined direction, a brake for stopping the rotation of saidsupport, a member operativelyconnected to said sound reproducing meansand actuated by said sound reproducing means substantially when itstarts its movement in said opposite direction to -automatically releasesaid brake, and menas movable independently of said member for resettingsaid brake.

' 3. The combination with a rotary record support, of sound reproducingvmeans arranged to move across said support in a predetermined directionto reproduce soundsv from a sound record on said support, means to movesaid sound reproducing means in the opposite direction, a brake forstopping said support, a ment-ber operatively connected to said soundreproducing means and actuatedby said sound reproducing means at thebegmning of its movement in said opposite direction to automaticallyrelease said brake, and menas movable independently of said member forVresettingsaid' I brake or for `releasing said brake. A

4. In a talking machine, the combination With a rotary record support,of an element arranged to move in a fixed` plane, a-soun'd box carriedby said element and mova'ble with respect thereto toward and away from.

said support and movable across said sup- 'verse to saidl predetermineddirection, a

brake for stopping the rotation of said support, and ,means in operativeengagement with said element and actuated by said element as it moves insaid opposite direction to automatically release said brake.

.5. In a talking machine, the combination with a rotary record support,of a sound record carried thereby,'sound. reproducingmeans including astylus arrangedto engage said record, and propelled across said'recordby said stylus in a predetermined direction and in anopposite directionby the engagement of said stylus with said record, a brake mechanism forstopping the rotation of said support, and means actuated by said soundreproducing means during its movement in a direction opposite to saidpredetermined direction for automatically operating said brakemechanism.

6. In a talking machine, the combinationv with a rotary record support,of a disk record carried thereby and provided with an undulatory spiralgroove and With a circular groove eccentric With respect to said spiralgroove and connected to one Aend thereof, sound reproducing meansarranged to en gage said grooves consecutively and to be voit a rotaryTsound record provided With a spiral undulatory groov'e corresponding tosound Waves, and a circular groove communicating With and eccentric Withrespect to said spiral groove, a brakingy member for controlling therotary movement of said record, and means actuated by said circulareccentric groove for releasing said braking member. y

8. In a talking machine, the combination of a rotary sound recordformed'to propel sound reproducing means in a predetermined directionfor reproducing sound and then to propel said sound reproducing means inan opposite direction, a brake mechanism for controlling the rotarymovement of said record, and means actuated by said sound reproducingmeans when movmg 1n sald opposite direction to operate said brake mech-A anism. Y

9. In a talking machine, the combination of a rotary sound recordprovided With a groove extending around said record and graduallyapproaching the center thereof and then receding from the center, abraking member for controlling the rotary movement of said record, andmeans operated `by said groove at the point Where lit approaches thecenter of said record and then recedes therefrom, for releasing saidbraking member.

10. Asound record provided With a substantially spiral undulatorygroove, said vspiral groove being substantially concentric with saidrecord, and said record being provided With a groove communicating withthe inner` end of said spiral groove and leading from said end graduallytoward the center of said record and then away from said center, meansto rotate said record, a brake mechanism for controlling said means forrotating said record, and means actuated by said groove communicatingwith the innerend of vsaid spiral groove for operating said brakemechanism.

l1. The combination with a rotary member having a spiral track thereonand a traveling member engaging said spiral track and edthereby in apredetermined direction Aacross the rotary member, of means on said vrotary member at the end of said track for ing member in its said slightmovement in said reverse direction for releasing the brake.

12. The combination With a rotary member and a traveling membercooperating With said rotary member and propelled in a predetermineddirection thereacross, of means at a predetermined point on said rotarymember for imparting a slight movement to the traveling member in thereverse direction, a brake mechanism controlling the rotation of saidrotary member, and means controlled by the traveling member in its saidslight movement in said reverse direction for operating said brakemechanism.

In Witness whereof, I have hereunto set my hand this 11th day ofDecember, 1912.

LLOYD Y. SQUIBB.

Witnesses: v

v FRANK B. MIDDLETON, J r.,

CHARLES F.W1LLARD. l

